Best Atomic Clock Reviews

So you want an accurate timekeeping device present in your life (office, house, school, etc.)? The answer is atomic clock. It’s way more accurate than quartz crystal and pendulum clocks. Pressure and temperature cause quartz crystal and pendulum clocks to lose time. But, this is not the copied NIST-F1 atomic clock located in Colorado to … Read more

Best Hourglasses

An hourglass functions similarly to a timer. It’s a tool to give you a certain interval time. However, unlike a digital timer that you are probably able to change the time interval, the time interval of hourglasses is fixed. In addition, although it’s said 10 minutes, for example, you should never expect it as accurate … Read more